Smelting-furnace.



No.-730,610. l PATBNTED `JUNE 9, 1903.

' n E. CAMPBELL.

SMBLIINGr` FURNAUE.:

APPLICATION FILED JULY s, 1902.

N0 MODEL.

A TTOHNEYS UNITnD VSTATES Patented June 9, 1903.

PATENT. Ormes.

EDWARD CAMPBELL, OF ROSSLAND, CANADA, ASSIGNOR F TVVO-THIRDS TOALEXANDER G. STREET AND JCHN JAMES CAMPBELL, OF ROSSLAND,

CANADA. l

. s-MeMusic-FuRNACE SPECIFICATION forming' part of Letters Patent No.r$30,610, dated J une 9, 190B. Application leil July 8, 1902. Serial No.114,848. (No model.)

To all whom, tm/ay concern,.-

Be it known that I, EDWARD CAMPBELL, a subject'of the King of GreatBritain, residing at Rossland, in the lProvince of' British Columbia,Dominion of Canada, have made certain new and useful Improvements inSnielting-Furnaces, of which the following is a specication.

My invention is an improvement in smeltzo ing-furnaces, and relatesparticularly to the water-jacketing construction of the furnace and tothe novel construction of the receiver, including the tapping-jacket andslag-spout; and the invention consists in certain novel constructionsand combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure lis a'vertical sec.

smelting-furnaoe of Wrought-iron, replacing all cast-iron water-jackets,rings, &;c., with ianged wrought-iron jackets and to avoid seams andrivets inside of the receiver where the molten metal comes in directcontact therewith. 5 i

In carrying out my invention I seek to 3o avoid all rivets inv positionswhere they will be exposed directly to the molten metal, to avoid theundue expansion of the variousparts of the receiver and its slag-spoutand tapping-hole, dispense with brick lining at the inner side of thereceiver, avoid all castings, save much time in making repairs byA theimproved `means for jacketing the tapping-hole, and also avoid theexplosions due from contact of the molten metal with WaterY 4o resultingfrom the burning away of rivets,

and generally to provide a water-jacketed receiver which will be moredurable than those ordinarily constructed, will cost less for repairs,and which can be repaired with 4 5 more facility than theordinaryconstructions.

The furnace l has its side Walls 2 and basewall or bottom 3water-jacketed, as shown in Fig. 1,and has a spout 4,which conveys themolten mass from the furnace to the receiver 5.

5o The receiver 5 rests on a cast-iron base 6,

which is protected by two rows of lire-brick 7, which also protect therivets which unite the lower edges of the inner and outer plates A and Bof the wall of the receiver. These plates A and B are spaced apart toform the water-receiver and are drawn together at -their upper and loweredges and secured at such edges by the rivets C and C. As will be seenfrom Fig. l, the lower rivets C are protected by the lire-brick "7.

In forming the slag-spout D the inner plate A is perforated at A'i andthe outer plate B at- B, the openings A' and B being in alinement andthe opening B larger than the opening A', so the opening A may receivethe .inner tube D' ofthe spout D and the outeropening B thewater-jacketing shell D2 of said slag-spout, the tube D' being iittedinto the opening A' andthe tube D2 being liitedinto the opening B' andthreaded in a collar E, which. is secured by bolts E' tothe outer plateB and encircles the openings B', as showninFig. 2. The space between thetubes D and D2 is suitably closed at its outer end bya ring D3 andcommunicates at its in- 75 ner end with the water-jaclreting spacebetween the plates A and B. By the described construction the slag-spoutis held securely in place, is Water-jacketed, and all rivets aredispensed with Where they would be subject to the direct action of themolten metal within the receiver. j

The construction of the tapping-jacket 6 is shown in detail in Fig.v Inthis construction an opening F is'provid'ed in the walls of the receiverfor the tappingjacket, the inner plate A being provided 4with an'outwardlyprojecting wing a, surrounding the opening F and having at itsouter edge Aa iiange a', which laps beneath the outer plate B and issecured Athereto by rivets G, as shown in Fig. A Thetapping-jacket H' isformed with the inner section H and the outer section H2. The innersection H is made' in the form of a cup, with the inner plate la, havinga central 9 5 opening h'and the rim-'plate 71,2, which fits in theopening F and is spaced apart sufficiently therefrom to permit theasbestos packing I to he fitted around the tapping-jacket and betweenthe same and the adjacent walls of roc the furnace. The outer section H2is composed of the outer plate h3, having the anges h4 at its outer edgethreaded at h5 into the outer end of the cup-section H' and the inwardlytapering central conical tube H3, which is threaded. at its end at h6,into the opening h in the plate h of the section H'. This forms aWater-jacketed tapping-jacket in which no rivets are used in a positionWhere they Will be exposed to the action of the molten metal and ajacket which can be conveniently constructed and repaired.tapping-jacket is secured to the body of the receiver by means of theangle-brackets'J, bolted at J' to the body of the receiver andoverlapping at J2 the outer edge of the tapping-jacket andare bolted atJ3 to the said tapping-jacket, thus securing it firmly in place and atthe same time permitting its convenient removal for any desired purpose.

Having thus described my invention, what I claim as new, and desire tosecure by Letters- Patent, is-

1. The combination in a receiver for use in connection -withsmelting-furnaces, of the inner and outer plates spaced apart formingthe water-jacket and 'provided with an opening for the tapping-jacket,the inner plate being provided with an outwardly-projecting wingsurrounding said opening and at its outer edge with the flangeunderlying theY outer plate, the rivets securing such flange and outerplate together, the tapping-jacket fitting in the opening in the side ofthe receiver, and composed of the inner cup-shape section having acentral opening, and the outer section having an outer plate providedwith an edge flange threaded into the outer end of the cup-section andalso provided with an inwardly-tapering central tube threaded in thecentral opening in the cup-shape section, and means for securing thetapping-jacket in connection with the bodyot` the receiver,substantially as set forth.

2. The combination with the body of the receiver having an opening forthe tappingjacket, of the tapping-jacket iitting in said opening andcomprising the inner cup-shape section having its base-plate providedwith a central opening, and the outer section threaded at its outer edgeinto the cup-shape section and provided With a central tube threaded atits end in the central opening of the base-plate of the cup-section, andmeans for The securing the tapping-jacket in place in the receiver,substantially as set forth.

3. The combination of the receiver-body having an opening for thetapping-jacket, the tapping-jacket itting in said opening and having adischarge-opening and a Waterjacket around the same, and the connectingdevice for securing saidjacket having portions overlapping thetapping-jacket and the body of the receiver and secured, substantiallyas set forth.

4. The combination of the body or wall having an opening for thetapping-jacket and comprising the inner and outer plates spaced apartforming a Water-space, the inner plate being provided with anoutwardly-projecting Wing extending to the outer plate and surroundingand forming the outer Wall for the opening of the tapping-jacket andprovided at the outer edge of said wing with a projecting dange lappingalong the outer plate and secured thereto substantially as set forth.

5. The combination with the inner and outerjacketing Wall-plates, spacedapart and provided with openings, the opening in the inner wall-plateleading to the interior of the receptacle, ofthe spout-tube held at itsinner end in the opening in the inner plate, and extending thenceoutwardly through the opening in the outer` plate, and a jacketing-tubesurrounding the outer extension of the spouttube and secured at itsinner end in the opening of the outer wall-plate, substantially as setforth.

6. The combination with the receiver having inner and outer Wall-platesspaced apart forming a water-jacket and provided in said plates withopenings in line with each other, the opening in the outer plate beinglarger than that in the inner plate, a collar secured on the outer platesurrounding the opening therein and threaded internally, the spout` tubesecured at its inner end in the opening in the inner plate and extendingthence outwardly through the opening in the outer plate, andthejacketing-tube surrounding the spou ttube and threaded at its innerend in the collar surrounding the opening in the outer plate,substantially as' set forth.

EDWARD CAMPBELL.

Witnesses:

G. W. CAMPBELL, J. L. D. NICHOLS.

IOC

